CP2 chapter 12 Flashcards Preview

Semester 2 > CP2 chapter 12 > Flashcards

Flashcards in CP2 chapter 12 Deck (97):
1

electrocardiograph

instrument used to record the electrical activity of the heart

2

electrocardigram

graphic representation the electrical activity of the heart

3

purpose of the electrocardiography

detect abnormalities
presence of impaired blood flow
detect inflammation
congenital heart defects
damage from MI

4

# of chambers

4

5

right and left atria

small upper chambers

6

right and left ventricles

large lower chambers

7

SA node (sinoatrial) location

upper portion of the right atrium

8

what is the SA node?

knot of modified myocardial cells that send out impulses

9

SA node job

initiates and regulates the heartbeat

10

pacemaker of the heart

SA node

11

AV node

delays he impulse to allow for contraction of the atria and filling ventricles with blood

12

cardiac cycle

one complete heartbeat

13

P wave

atrial deplorization

14

QRS wave

ventricular deplorization

15

T wave

ventricular repolarization (resting)

16

baseline

flat, horizontal line entire heart returns to resting state

17

segment

portion of the ECG between two waves

18

interval

length of a wave or the length of a wave with a segment

19

P-R wave

end of AD and beginning of VD

20

S-T wave

end of VD beginning of RV

21

P-R wave

beginning of AD to beginning o VD

22

Q-T wave

beginning of VD to end of RV

23

standardization mark

2x10

24

standard ECG leads

12

25

lead

tracing of the electrical activity of the heart between 2 electrodes

26

electrodes

good conductor of electricity
pick up electrical impulses by the heart

27

electrolyte

facilitates the transmission of the hearts electrical impulse

28

foil-lines pouch

preserves moisture to prevent the electrolyte from drying out

29

# of bipolar leads

3

30

lead 1

electrical current traveling between the right arm and left arm

31

lead 2

records the electrical current traveling between the right arm and the left leg

32

lead 3

records the electrical current travelingg btween the left arm and the left leg

33

special about lead 2

shows the rhythm better
rhythm strip

34

rhythm strip

longer recording of lead 2

35

# of augmented leads

3

36

lead aVR

electrical current traveling between the right arm and a central point between the left arm and left leg

37

lead aVL

electrical current traveling between the left arm electrode and a central point between the right arm andd left leg

38

lead aVF

electrical current traveling between the left leg electrode and a central point between the right and left arms

39

chest leads

6
record the heart's voltage from front to back

40

cardiac stress test

evaluate the cardiovascular health of ind. with known heart disease

41

paper speed

25 mm/sec

42

advantage of a 3 channel electrocardiograph

can be produced in less time

43

interpretive ECG

built in computer program that analyzes the recording as it is being run

44

EMR connectivity

linked w the offices computer system

45

artifacts

additional electrical activity that is picked up by the ECG

46

artifact filter

reduce artifacts
can also affect the accuracy of ECG

47

muscle artifact

fuzzy, irregular baseline

48

somatic tremor

involuntary movement

49

causes for muscle artifact

apprehensive pt
discomfort
movement
condition

50

wandering baseline

loose electrodes
lotion
dried out electrolyte

51

60 second/ac artifact

electrical interference

52

causes for 60 second artifact

electrical equipment in room
wiring in walls

53

interrupted baseline

metal tip of a lead wire is detached

54

Holter monitor

continuous recording of the electrical activity of the heart for 24 hours or longer

55

original holter monitor

consisted of a large pack of equipment worn on the pts back

56

purpose of a holter monitor

detect cardiac abnormalities that occur while the pt is engaged in normal daily routines

57

purpose of the electrodes

pick up the electrical impuses given off by the heart

58

normal sinus rhythm

ECG that is within normal limits

59

sinus bradycardia

slower than 60

60

sinus tachycardia

faster than 100

61

cardia dysrhythmia

abnormal electrical activity in the heart cauing an irregular heart beat

62

types of dysrhythmias

extra beats
abnormal rhythm
abnormal heart rate

63

PAC premature atrial contraction

beat that comes before the next beat is due

64

who gets PAC

healthy people that have caffeine and tobacco

65

PAT paroxysmal atrial tachycardia

sudden onset and termination
fluttering or pounding of the chest with weakness

66

who gets PAT

healthy pts

67

atrial flutter

rapid, regular fluttering
T is lost

68

atrial fibrillation

P waves have no definite pattern or shape
400-500

69

who gets atrial fibrillation

pts with underlying heart disease

70

PVC

beat that comes early in the cycle

71

who gets PVC

anxiety, smoking, caffeine, alcohol

72

VT

series of 3 or more PVC

73

V fib

most serious

74

who gets V fib

pts having heart attack

75

purpose of pulmonary function test

assess lung functioning

76

spirometry

screening test that is often performed in the medical office

77

spirometer

measures how much air is pushed out of the lungs and how fast it is pushed out

78

forces vital capacity

maximum volume of air that can be expired when the pts exhales *only can take 3 tries

79

post bronchodilator spirometry

inform the physician as to how treatment would work in pts whose airways are obstructed

80

asthma

chronic lung disease that affects the small airways of the lungs

81

who is asthma most common in?

children

82

wheezing

high pitched nose

83

long term control for ashma

relieve inflammation and prevent symptoms from occurring

84

quick relief for asthma

open the airways quickly *during asthma attack

85

peak flow meter

measure how quickly air flows out of the lungs when the pt exhales forcefully

86

peak flow rate

maximum volume of air that can be exhaled when the pt blows

87

hypoxemia

decrease in the oxygen saturation of the blood

88

hypoxia

reduction in the oxygen supply to the tissues of the body

89

oxygen therapy

administration of oxygen to treat or prevent hypoxemia

90

flow rate

amount of supplemental oxygen prescribed for a pat

91

what is oxygen measured in?

L/min

92

compressed oxygen gas

oxygen gas compressed under high pressure and then stored in a container referred to as a cylinder

93

oxygen concentrator

separates oxygen out of the air, concentrates it, and then stores it for use by the pt

94

nasal cannula

administering home oxygen therapy

95

face mask

used for pts who need a high flow of oxygen

96

ischemia

deficiency of blood in a body part

97

atherosclerosis

buildup of plaque on the inner walls of an artery that causes the artery to narrow